First-Ever ‘Einstein Zig-Zag’ Found in Space Could Help Solve the Universe’s Expansion Mystery
A compound lens forged by two galaxies is helping astronomers get a bead on the Hubble Constant and dark energy.
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First-Ever Discovery of Einstein Zig-Zag Lens Reshapes Our Understanding of the Universe
A team of astronomers has identified a double gravitational lens system with an extraordinary “zig-zag” light path, rewriting ...